Diamond thermal management

Cooling the hottest chips with diamond.

DiaTherm brings CVD diamond, the most thermally conductive material known, into semiconductor packages. We supply diamond heat spreaders and are developing the bonding process that gets heat out of the chip without trapping it at the interface.

The problem

Heat, not transistors, is now the limit.

Power electronics, AI accelerators and 3D-stacked chips concentrate more power into less area every generation. Copper and ceramic heat spreaders are reaching their ceiling, and hot spots throttle performance and shorten device life.

Typical room-temperature thermal conductivity. Values vary by grade and process.

Our approach

Diamond in the package, bonded right.

Diamond only helps if the heat can actually reach it. Our work focuses on the full path from chip to spreader.

01

CVD diamond supply

Heat spreaders and wafers sourced through a direct manufacturing network with large-scale CVD growth capacity, qualified to application requirements.

02

Diamond-to-chip bonding

A bonding process under development in Dresden that minimises voids and interface resistance, so heat is not trapped between die and diamond.

03

Integration and validation

Characterisation and integration work with research partners, including diamond for thermal management in 3D semiconductor structures.

Applications

Where every degree matters.

Power electronics

SiC and GaN modules for EVs, chargers and grid infrastructure.

AI and data centers

High-power accelerators where heat density limits clock speed and rack density.

Advanced packaging

Chiplets, SiP and 3D stacks with buried hot spots that conventional spreaders cannot reach.

RF and photonics

GaN RF amplifiers and laser diodes that need compact, highly conductive heat paths.

About

Built in Dresden, at the heart of Silicon Saxony.

DiaTherm combines materials research, semiconductor integration and a direct CVD diamond supply network, working closely with research partners in Europe's largest microelectronics cluster.

Contact

Working on a thermal problem?

We are looking for pilot partners, researchers and packaging engineers who are hitting thermal limits today. We would love to hear what you are seeing.